Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
4
Directory of Open Access Journals: DOAJ Articles
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Cambridge University Press
1
Imperial College London: Spiral
1
Masaryk University Journals
1
Natural Environment Research Council: NERC Open Research Archive
1
SAGE Publications (via Crossref)
1
University College London: UCL Discovery
1
Zenodo
1